Weeding composition containing isoxaflutole, pyroxasulfone and terbuthylazine as well as herbicide and application thereof

Abstract

The invention belongs to the technical field of pharmaceutical preparations, and provides a weeding composition containing isoxaflutole, pyroxasulfone and terbuthylazine as well as a herbicide and application thereof. The weeding composition is prepared from isoxaflutole, pyroxasulfone and terbuthylazine according to the mass ratio of (1-10): (1-20): (1-50), has a remarkable synergistic effect, and can effectively reduce the use dosage of pesticide, reduce the pesticide use frequency, reduce the pesticide use cost and reduce the adverse effect of the pesticide on the ecological environment. The weeding composition provided by the invention can expand the weeding spectrum, solves various weed problems through one-time medication, and makes up for the defects and limitations during use of a single agent; the service life of the herbicide is prolonged, and the herbicide has important significance on comprehensive treatment of weed resistance; the weeding composition is rapid in pesticide effect, long in lasting period and low in use cost, and can be used for controlling annual weeds in corn fields; the weeding composition is safe to crops.

Description

Technical Field

[0001] The invention relates to the technical field of pharmaceutical preparations, and in particular to a herbicide composition containing isoxathiapiprolin, pyraclostrobin and terbuthylazine, and a herbicide and application thereof. Background Art

[0002] Isoxaflutole is an isoxazoline herbicide developed and produced by Bayer. It belongs to the class of para-hydroxyphenylpyruvate dioxygenase (HPPD) inhibitor herbicides and is mainly used in crops such as corn, sugarcane, and cotton. It can effectively control annual weeds including broadleaf weeds and grass weeds, such as crabgrass, barnyard grass, goosegrass, chinensis, foxtail grass, ramie, quinoa, Amaranthus retroflexus, and Amaranthus tataricus.

[0003] Pyroxasulfone is a new type of broad-spectrum, highly active pre-emergence soil treatment agent developed by Kumizu Chemical Co., Ltd. of Japan. Its mechanism of action is a very long-chain fatty acid elongation synthase inhibitor. After application, it is absorbed by the young roots or shoots of weeds, inhibits the biosynthesis of very long-chain fatty acid elongation synthase, and causes the construction of fatty acid precursor substances, which can inhibit the early growth of seedlings and destroy meristems and coleoptiles to exert its efficacy. Pyroxasulfone is widely applicable to crops, such as corn, soybeans, cotton, wheat, sunflowers, potatoes, peanuts and other crops, and effectively controls grass weeds such as foxtail, crabgrass, barnyard grass, and broad-leaved weeds such as amaranth and sophora japonica.

[0004] Terbuthylazine is the first cornfield weed control product promoted by Syngenta, and was later promoted globally by Syngenta, Adama, Oxon, Dow AgroSciences, Herbos and other companies. Terbuthylazine is a photosystem II electron transfer inhibitor. The mechanism of action is to inhibit electron transfer in photosynthesis. After terbuthylazine is absorbed by plants, it is conducted in the apoplast system, enters the chloroplast thylakoid membrane through the xylem, and binds to the QB protein in the photosynthesis electron transfer chain, destroying the function of the QB protein and preventing it from continuing to transfer electrons, ultimately hindering photosynthesis. Terbuthylazine is a selective systemic herbicide that is mainly absorbed by plant roots and can be applied before or after budding. It has a wide spectrum of weed control and is used to control most annual weeds. It is mainly used in corn and sorghum, and can also selectively control weeds in grapes, fruit trees, citrus, coffee, oil palm, cocoa, olives, potatoes, peas, beans, sugarcane, rubber and forestry nurseries.

[0005] There is no report on the prior art disclosing the ternary herbicidal composition of isoxathiapiprolin, pyraclostrobin and terbuthylazine. Therefore, it is of great value to provide a herbicidal composition containing isoxathiapiprolin, pyraclostrobin and terbuthylazine and a herbicide thereof for effectively controlling weeds. Summary of the invention

[0006] The purpose of the present invention is to provide a herbicide composition containing isoxathiapiprolin, pyraclostrobin and terbuthylazine, and a herbicide and application thereof in view of the deficiencies in the prior art.

[0007] In order to achieve the above-mentioned object of the invention, the present invention provides the following technical solutions: The invention provides a herbicidal composition containing isoxaflutole, pyraclostrobin and terbuthylazine; the herbicidal composition comprises isoxaflutole, pyraclostrobin and terbuthylazine; and the mass ratio of isoxaflutole, pyraclostrobin and terbuthylazine is 1-10:1-20:1-50.

[0008] Preferably, the mass ratio of isoxathiapiprolin, pyraclostrobin and terbuthylazine is 1-5:1-10:1-30.

[0009] The present invention also provides a herbicide, comprising an active ingredient and an auxiliary ingredient; the active ingredient is the herbicide composition containing isoxathiapiprolin, pyraclostrobin and terbuthylazine, and the mass content of the active ingredient is 1-80%.

[0010] Preferably, the auxiliary material ingredients include one or more of a dispersant, a wetting agent, a surfactant, an emulsifier, a stabilizer, a thickener, a defoaming agent, a binder, a disintegrant, a pH regulator, a suspending agent, an antifreeze agent, a preservative, a filler, a carrier and a solvent.

[0011] Preferably, the formulation of the herbicide comprises emulsifiable concentrate, oil suspension, suspension concentrate, wettable powder, water dispersible granules, dispersible oil suspension, suspoemulsion, aqueous emulsion or microemulsion.

[0012] Preferably, the dispersant comprises one or more of lignin sulfonate, alkylbenzene sulfonate, alkylphenol polyoxyethylene ether, alkylnaphthalene sulfonate, N-methyl fatty acyl taurate, alkylphenol polyoxyethylene ether formaldehyde condensate, naphthalene sulfonate formaldehyde condensate sodium salt, polycarboxylate and fatty amine polyoxyethylene ether; The wetting agent comprises one or more of fatty alcohol sulfate, fatty alcohol polyoxyethylene ether, fatty alcohol polyoxyethylene ether sodium sulfate, polyoxyethylene-polyoxypropylene block polymer, sodium alkylbenzene sulfonate, alkyl succinate sulfonate, lignin sulfonate, alkylphenol polyoxyethylene ether, alkylphenol polyoxyethylene ether formaldehyde condensate and saponin; The surfactant comprises one or more of alkyl sulfonates, sodium alkylnaphthalene sulfonates, alkylphenol polyoxyethylene ethers, sodium dodecyl sulfate, calcium dodecylbenzene sulfonate, lignin sulfonates, carboxymethyl cellulose, tristyrylphenol, fatty alcohol ethoxylates, castor oil ethoxylates and amine ethoxylates.

[0013] Preferably, the emulsifier comprises one or more of castor oil polyoxyethylene ether, alkylphenol polyoxyethylene ether phosphate, phenylphenol polyoxyethylene ether, styrylphenol polyoxyethylene ether, fatty alcohol polyoxyethylene ether and alkylbenzene sulfonate; The thickener comprises one or more of xanthan gum, gelatin, gum arabic, guar gum, sodium alginate, sodium hydroxymethyl cellulose, polyvinyl alcohol, polyacrylamide, meteorological white carbon black, magnesium aluminum sulfate, magnesium aluminum silicate, diatomaceous earth and organic bentonite; The carrier comprises one or more of white carbon black, kaolin, diatomaceous earth, bentonite, light calcium carbonate, gypsum, attapulgite, clay, soluble starch and urea; The antifreeze agent comprises one or more of propylene glycol, ethylene glycol and glycerol; The preservative comprises one or more of sodium benzoate, potassium sorbate, phenoxyethanol and methyl hydroxybenzoate; The defoaming agent is a silicone defoaming agent.

[0014] The present invention also provides the use of the herbicidal composition containing oxadiazon, pyraclostrobin and terbuthylazine or the herbicide in controlling annual weeds.

[0015] The beneficial effects of the present invention include: The herbicidal composition of the present invention has a significant synergistic effect, can effectively reduce the dosage of pesticides, reduce the number of times of use, reduce the cost of use, and reduce the adverse effects of pesticides on the ecological environment. The herbicidal composition of the present invention can expand the weed control spectrum, solve various weed problems with one-time use, and make up for the defects and limitations of single-dose use; prolong the service life of the agent, which is of great significance for the comprehensive control of weed resistance; the drug effect is rapid, the lasting effect is long, the use cost is low, and it can be used to prevent and control annual weeds in corn fields; the herbicidal composition of the present invention is safe for crops. DETAILED DESCRIPTION

[0016] The invention provides a herbicidal composition containing isoxaflutole, pyraclostrobin and terbuthylazine; the herbicidal composition comprises isoxaflutole, pyraclostrobin and terbuthylazine; and the mass ratio of isoxaflutole, pyraclostrobin and terbuthylazine is 1-10:1-20:1-50.

[0017] In the present invention, the mass ratio of isoxathiapiprolin, pyraclostrobin and terbuthylazine is preferably 4-10:10-15:20-40, more preferably 7-9:11-13:27-32, and more preferably 8:12:30.

[0018] The invention provides a herbicide comprising an active ingredient and an auxiliary ingredient; the active ingredient is the herbicide composition containing isoxathiapiprolin, pyraclostrobin and terbuthylazine, and the mass content of the active ingredient is 1-80%.

[0019] In the present invention, the mass content of the active ingredient is preferably 30 to 70%, more preferably 40 to 60%, and even more preferably 50%.

[0020] In the present invention, the types of auxiliary ingredients are various ingredients commonly used and allowed to be used in pesticide preparations, and are not particularly limited.

[0021] In the present invention, the auxiliary material components preferably include one or more of a dispersant, a wetting agent, a surfactant, an emulsifier, a stabilizer, a thickener, a defoaming agent, a binder, a disintegrant, a pH regulator, a suspending agent, an antifreeze agent, a preservative, a filler, a carrier and a solvent.

[0022] In the present invention, the formulation of the herbicide preferably comprises emulsifiable concentrate, oil suspension, suspension concentrate, wettable powder, water dispersible granule, dispersible oil suspension, suspoemulsion, aqueous emulsion or microemulsion.

[0023] In the present invention, the dispersant preferably comprises one or more of lignin sulfonate, alkylbenzene sulfonate, alkylphenol polyoxyethylene ether, alkylnaphthalene sulfonate, N-methyl fatty acyl taurate, alkylphenol polyoxyethylene ether formaldehyde condensate, naphthalene sulfonate formaldehyde condensate sodium salt, polycarboxylate and fatty amine polyoxyethylene ether; The wetting agent preferably comprises one or more of fatty alcohol sulfate, fatty alcohol polyoxyethylene ether, fatty alcohol polyoxyethylene ether sodium sulfate, polyoxyethylene-polyoxypropylene block polymer, sodium alkylbenzene sulfonate, alkyl succinate sulfonate, lignin sulfonate, alkylphenol polyoxyethylene ether, alkylphenol polyoxyethylene ether formaldehyde condensate and saponin; The surfactant preferably comprises one or more of alkyl sulfonates, sodium alkylnaphthalene sulfonates, alkylphenol polyoxyethylene ethers, sodium dodecyl sulfate, calcium dodecylbenzene sulfonate, lignin sulfonates, carboxymethyl cellulose, tristyrylphenol, fatty alcohol ethoxylates, castor oil ethoxylates and amine ethoxylates.

[0024] In the present invention, the alkyl sulfonate is preferably an alkyl ethyl sulfonate.

[0025] In the present invention, the emulsifier preferably comprises one or more of castor oil polyoxyethylene ether, alkylphenol polyoxyethylene ether phosphate, phenylphenol polyoxyethylene ether, styrylphenol polyoxyethylene ether, fatty alcohol polyoxyethylene ether and alkylbenzene sulfonate; The thickener preferably comprises one or more of xanthan gum, gelatin, gum arabic, guar gum, sodium alginate, sodium hydroxymethyl cellulose, polyvinyl alcohol, polyacrylamide, meteorological white carbon black, magnesium aluminum sulfate, magnesium aluminum silicate, diatomaceous earth and organic bentonite; The carrier preferably comprises one or more of white carbon black, kaolin, diatomaceous earth, bentonite, light calcium carbonate, gypsum, attapulgite, clay, soluble starch and urea; The antifreeze agent preferably comprises one or more of propylene glycol, ethylene glycol and glycerol; The preservative preferably comprises one or more of sodium benzoate, potassium sorbate, phenoxyethanol and methyl hydroxybenzoate; The defoaming agent is preferably a silicone defoaming agent.

[0026] In the present invention, the solvent preferably comprises one or more of methyl oleate, aromatic solvent S-100, aromatic solvent S-150, aromatic solvent S-200, xylene, trimethylbenzene, methylnaphthalene, cyclohexanone, corn oil, soybean oil, rapeseed oil, peanut oil and water.

[0027] In the present invention, different auxiliary materials are selected according to the needs to prepare corresponding dosage forms.

[0028] The present invention also provides the use of the herbicidal composition containing oxadiazon, pyraclostrobin and terbuthylazine or the herbicide in controlling annual weeds.

[0029] In the present invention, the weeds are preferably grass weeds and broadleaf weeds. The grass weeds preferably include Digitaria, Echinochloa crusgalli, Goosegrass, Setaria viridis, and Echinochloa crusgalli; the broadleaf weeds preferably include Purslane and Bindweed.

[0030] The technical solutions provided by the present invention are described in detail below in conjunction with the embodiments, but they should not be construed as limiting the protection scope of the present invention.

[0031] Example 1

[0032] Add 50% active ingredient (the mass ratio of isoxathiapiprolin, pyraclostrobin and terbuthylazine is 8:12:30), 7% sodium alkylbenzene sulfonate, 4% ethylene glycol, 1.2% sodium benzoate, 0.5% calcium lignin sulfonate, 0.3% xanthan gum and water (water is added to 100%) into a stirring kettle and stir evenly. The uniform material is sand-milled to make the average particle size D90 of the material less than 10 μm to obtain a suspension concentrate with an active ingredient of 50%.

[0033] Example 2

[0034] The mass ratio of isoxathiapiprolin, pyraclostrobin and terbuthylazine in Example 1 was changed to 4:6:15, the mass content of terbuthylazine in the suspension was 15%, and the other conditions were the same as in Example 1.

[0035] Example 3 The mass ratio of isoxathiapiprolin, pyraclostrobin and terbuthylazine in Example 1 was changed to 4:6:30, the mass content of terbuthylazine in the suspension was 30%, and the other conditions were the same as in Example 1.

[0036] Example 4 The mass ratio of isoxathiapiprolin, pyraclostrobin and terbuthylazine in Example 1 was changed to 4:12:15, the mass content of terbuthylazine in the suspension was 15%, and the other conditions were the same as in Example 1.

[0037] Example 5 The mass ratio of isoxathiapiprolin, pyraclostrobin and terbuthylazine in Example 1 was changed to 4:12:30, the mass content of terbuthylazine in the suspension was 30%, and the other conditions were the same as in Example 1.

[0038] Example 6 The mass ratio of isoxathiapiprolin, pyraclostrobin and terbuthylazine in Example 1 was changed to 8:6:15, the mass content of terbuthylazine in the suspension was 15%, and the other conditions were the same as in Example 1.

[0039] Example 7 The mass ratio of isoxathiapiprolin, pyraclostrobin and terbuthylazine in Example 1 was changed to 8:6:30, the mass content of terbuthylazine in the suspension was 30%, and the other conditions were the same as in Example 1.

[0040] Example 8 The mass ratio of isoxathiapiprolin, pyraclostrobin and terbuthylazine in Example 1 was changed to 8:12:15, the mass content of terbuthylazine in the suspension was 15%, and the other conditions were the same as in Example 1.

[0041] Example 9

[0042] The active ingredients (the mass ratio of isoxathiapiprolin, pyraclostrobin and terbuthylazine is 8:12:30), 10% styrylphenol polyoxyethylene ether, 5% calcium dodecylbenzenesulfonate, 0.2% bentonite and methyl oleate (methyl oleate is added to 100%) are mixed evenly. The material is sand-milled to make the average particle size D90 of the material less than 10 μm, and a dispersible oil suspension containing 50% of the active ingredient is obtained.

[0043] Example 10

[0044] Mix 50% active ingredients (the mass ratio of isoxathiapiprolin, pyraclostrobin and terbuthylazine is 8:12:30), 5% fatty alcohol polyoxyethylene ether (N=3), 3% calcium dodecylbenzene sulfonate, 2% fatty alcohol polyoxyethylene ether (N=9) and methyl oleate (methyl oleate is supplemented to 100%). The materials are sand-milled to make the average particle size D90 of the materials less than 10 μm to obtain an emulsifiable concentrate with an active ingredient content of 50%.

[0045] Application Example 1 The suspension concentrates of Examples 1 to 8 were used to carry out indoor bioassays on grass weeds (Digitaria, Echinochloa crusgalli) and broadleaf weeds (Purslane, Field Bindweed). The test conditions were as follows: the test was carried out in a greenhouse; the culture temperature was 15-20° C. at night; and 22-32° C. during the day; Application method: spray soil after sowing and before seedlings emerge; use a pot with a diameter of 15 cm, fill the test soil to 4 / 5 of the pot, and make the soil completely wet by water infiltration at the bottom of the pot. Sow the test weed seeds evenly on the soil surface, 50 weed seeds per pot, and then cover with 0.5 cm of soil. After 24 hours of sowing, place it in a spray tower and spray the agents of each embodiment and the single agent ( type pesticide spraying system, spray pressure 0.3MPa), in a single agent, the dosage of isoxathiapiprolin is 40g ai / hm 2 、80g ai / hm 2 The dose of sulfone pyraclostrobin was 60 g ai / hm 2 、120g ai / hm 2 The dose of terbuthylazine was 150 g ai / hm 2 、300g ai / hm 2 .

[0046] According to NY / T 1155.7-2006 "Guidelines for Indoor Pesticide Tests - Herbicides Part 7 - Determination of Combined Action of Mixtures", the Colby method is used, as shown in formula 1: Formula 1 In formula 1: Weed survival rate when X-isoxazone was applied as P, the P dosage was 40 g ai / hm 2 、80g ai / hm 2 ; The survival rate of weeds when the dosage of Y-sulfonepyraclostrobin was Q, and the dosage of Q was 60g ai / hm 2 、120g ai / hm 2 ; The survival rate of weeds when the dosage of Z-terbuthylazine is R, R is 150g ai / hm 2 、300g ai / hm 2 ; E0-refers to the theoretical weed survival rate of mixed herbicides when the dosage of isoxathiapiprolin+pyraclostrobin+terbuthylazine is (P+Q+R); E- refers to the actual control effect of the mixed herbicide.

[0047] When E-E0>10%, it is a synergistic effect; when E-E0<-10%, it is an antagonistic effect; when the E-E0 value is between the theoretical value ±10%, it is an additive effect.

[0048] The results of the activity test of the three single agents of isoxathiapiprolin, pyraclostrobin, and terbuthylazine and the suspension concentrates of Examples 1 to 8 on Digitaria, Echinochloa crusgalli, Portulaca oleracea, and Convolvulus tataricus are shown in Tables 1 to 4, respectively.

[0049] Table 1 Results of the activity test of single agent and suspension concentrate of the examples against Digitaria

[0050] Table 2 Results of the activity test of single agent and suspension concentrate of the examples against barnyard grass

[0051] Table 3 Activity test results of single agent and suspension of the embodiment on Portulaca oleracea

[0052] Table 4 Activity test results of single agent and suspension concentrate of the embodiment on field bindweed

[0053] It can be seen from Tables 1 to 4 that the suspension concentrate of Example 1 has a significant synergistic effect on the gramineous weeds Digitaria sanguinalis and Echinochloa crus-galli and the broad-leaved weeds Portulaca oleracea and Bindweed.

[0054] The performance of the herbicides in different formulations of Examples 1 and 9-10 was tested. The emulsifiable concentrate, dispersible oil suspension, suspoemulsion, suspension concentrate and water dispersible granules were tested with suspension rate and heat storage stability as indicators. The results are shown in Table 5.

[0055] Table 5 Suspension rate and thermal storage stability test results of different formulations of herbicides

[0056] As can be seen from Table 5, the herbicide of the present invention is preferably in the form of a suspension concentrate or a dispersible oil suspension concentrate.

[0057] Application Example 2 The suspension concentrate of Example 1 and the dispersible oil suspension concentrate of Example 9 were used to conduct field control test on annual weeds in corn fields. Test location: corn fields in Zhengyang County, Zhumadian City, Henan Province, the test plots were flat and loamy.

[0058] Test method: The test set up a drug treatment and a blank control. The blank control was treated with an equal amount of clean water. Each treatment was repeated 4 times. The plot area was 30m 2(5m×6m), arranged in random blocks; soil spray treatment was used after sowing.

[0059] Weed control effectiveness survey: Absolute value survey method was used. Four sampling points were randomly selected in the plot 45 days after the application of pesticides, with a radius of 0.25 m2 per sampling point. 2 , measure the fresh weight of the aboveground part of the weeds, fresh weight control effect = (control fresh weight - treatment fresh weight) / blank control fresh weight × 100%.

[0060] The results of the field control efficacy test of the suspension concentrate of Example 1 and the dispersible oil suspension concentrate of Example 9 on annual weeds in corn fields are shown in Table 6.

[0061] Table 6 Field test of the control effect of suspension concentrate and dispersible oil suspension concentrate on annual weeds in corn fields

[0062] As shown in Table 6, the 50% active ingredient suspension of Example 1 at a dosage of 1000 g / mu has an excellent control effect on annual weeds in corn fields.

[0063] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A herbicidal composition containing isoxathiapiprolin, pyraclostrobin and terbuthylazine, characterized in that: The herbicidal composition comprises isoxathiapiprolin, pyraclostrobin and terbuthylazine; the mass ratio of isoxathiapiprolin, pyraclostrobin and terbuthylazine is 1-10:1-20:1-50.

2. The herbicidal composition containing isoxathiapiprolin, pyraclostrobin and terbuthylazine according to claim 1, characterized in that: The mass ratio of isoxathiapiprolin, pyraclostrobin and terbuthylazine is 1-5:1-10:1-30.

3. A herbicide, characterized in that: The invention comprises active ingredients and auxiliary ingredients; the active ingredient is the herbicidal composition containing isoxathiapiprolin, pyraclostrobin and terbuthylazine as claimed in claim 1 or 2, and the mass content of the active ingredient is 1-80%.

4. The herbicide according to claim 3, characterized in that The auxiliary material components include one or more of dispersants, wetting agents, surfactants, emulsifiers, stabilizers, thickeners, defoamers, binders, disintegrants, pH regulators, suspending agents, antifreeze agents, preservatives, fillers, carriers and solvents.

5. The herbicide according to claim 3, characterized in that The formulation of the herbicide includes emulsifiable concentrate, oil suspension, suspension concentrate, wettable powder, water dispersible granule, dispersible oil suspension, suspoemulsion, aqueous emulsion or microemulsion.

6. The herbicide according to claim 4, characterized in that The dispersant comprises one or more of lignin sulfonate, alkylbenzene sulfonate, alkylphenol polyoxyethylene ether, alkylnaphthalene sulfonate, N-methyl fatty acyl taurate, alkylphenol polyoxyethylene ether formaldehyde condensate, naphthalene sulfonate formaldehyde condensate sodium salt, polycarboxylate and fatty amine polyoxyethylene ether; The wetting agent comprises one or more of fatty alcohol sulfate, fatty alcohol polyoxyethylene ether, fatty alcohol polyoxyethylene ether sodium sulfate, polyoxyethylene-polyoxypropylene block polymer, sodium alkylbenzene sulfonate, alkyl succinate sulfonate, lignin sulfonate, alkylphenol polyoxyethylene ether, alkylphenol polyoxyethylene ether formaldehyde condensate and saponin; The surfactant comprises one or more of alkyl sulfonates, sodium alkylnaphthalene sulfonates, alkylphenol polyoxyethylene ethers, sodium dodecyl sulfate, calcium dodecylbenzene sulfonate, lignin sulfonates, carboxymethyl cellulose, tristyrylphenol, fatty alcohol ethoxylates, castor oil ethoxylates and amine ethoxylates.

7. The herbicide according to claim 4, characterized in that The emulsifier comprises one or more of castor oil polyoxyethylene ether, alkylphenol polyoxyethylene ether phosphate, phenylphenol polyoxyethylene ether, styrylphenol polyoxyethylene ether, fatty alcohol polyoxyethylene ether and alkylbenzene sulfonate; The thickener comprises one or more of xanthan gum, gelatin, gum arabic, guar gum, sodium alginate, sodium hydroxymethyl cellulose, polyvinyl alcohol, polyacrylamide, meteorological white carbon black, magnesium aluminum sulfate, magnesium aluminum silicate, diatomaceous earth and organic bentonite; The carrier comprises one or more of white carbon black, kaolin, diatomaceous earth, bentonite, light calcium carbonate, gypsum, attapulgite, clay, soluble starch and urea; The antifreeze agent comprises one or more of propylene glycol, ethylene glycol and glycerol; The preservative comprises one or more of sodium benzoate, potassium sorbate, phenoxyethanol and methyl hydroxybenzoate; The defoaming agent is a silicone defoaming agent.

8. Use of the herbicidal composition containing oxadiazon, pyraclostrobin and terbuthylazine according to claim 1 or 2 or the herbicide according to any one of claims 3 to 7 in controlling annual weeds.

Images